Ultra-High Energy Astrophysical Neutrino Detection, and the Search for Lorentz Invariance Violations

TL;DR

This paper discusses the capabilities of ultra-high energy neutrino observatories in Antarctica to detect neutrinos and search for violations of Lorentz invariance, potentially constraining new physics beyond the Standard Model.

Contribution

It highlights the potential of current and future Antarctic neutrino detectors to test Lorentz invariance violation through neutrino flux and energy measurements.

Findings

Current observatories can constrain the Standard Model Extension.

Future expansions will enhance detection sensitivity.

Neutrino flux measurements can reveal LIV signatures.

Abstract

A growing class of ultra-high energy neutrino (UHE-nu) observatories based on the Askaryan effect and Antarctic ice is able to search for Lorentz invariance violation (LIV). The ARA, ARIANNA, ANITA and EVA collaborations have the power to constrain the Standard Model Extension (SME) by measuring the flux and energy distribution of neutrinos created through the GZK process. The future expansion of ARA, at the South Pole, pushes the discovery potential further.